U+1D59A "𝖚" Mathematical Bold Fraktur Small U Unicode Character

U+1D59A "𝖚" Mathematical Bold Fraktur Small U is a typographic character used primarily in mathematical and academic notation to represent the variable u in a bold Fraktur style, which combines the ornate, gothic script of Fraktur with the emphasis of a bold typeface. It belongs to the Mathematical Alphanumeric Symbols block, which was added to Unicode to enable distinct formatting for mathematical variables, making it suitable for advanced texts where different styles denote different functions or entities. This character supports precise communication in fields like algebra or number theory, where a single letter may take on multiple meanings depending on its specific typeface.

General Properties

Code Point	U+1D59A
Version Added	3.1
Name	Mathematical Bold Fraktur Small U
Block	Mathematical Alphanumeric Symbols
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"u" U+0075 Latin Small Letter U

Encodings

HTML Decimal Encoding	𝖚
HTML Hex Encoding	𝖚
UTF-8 Encoding	0xF0 0x9D 0x96 0x9A
UTF-16 Encoding	0xD835 0xDD9A
UTF-32 Encoding	0x0001D59A
C/C++/Java Escape	\ud835\udd9a

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Lowercase	Yes
Cased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"u" U+0075 Latin Small Letter U
NFKC Simple Casefold	"u" U+0075 Latin Small Letter U
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Math	Yes
Other Math	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Lower